#include <stdio.h>
#include <string.h>
int main()
{
    int i,j,k;
    char a[20] = {"fhdsfhsdFDSF"};
    char b[10] = {"fdautrG"};
    int a1 = strlen(a);
    int b1 = strlen(b);

    printf("a = %s,b = %s\n",a,b);
    
    
    for ( i = 0; i < a1; i++)
    {
        for ( j = 0; j < b1; j++)
        {
            // 进行条件判断比较，如果此时输入的b值和a值一样，就让a的下一位进行覆盖
            if (a[i] == b[j] || a[i] - b[j] == 32 || a[i] - b[j] == -32)
            {
                for ( k = i; k < a1; k++)
                {
                    a[k] = a[k+1];
                }
                a1--;
                i--;
            }
            
        }
       
    }
    
    for ( i = 0; i < 13; i++)
    {
        printf("%c",a[i]);
    }
    
    return 0;
}